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Install sealed throat connector or
flashing to prevent leakage of room
air up through chimney.
DV Only: Before installing vent
liners, mark each liner on both
ends to designate which is the
intake and the exhaust.
Measure the height of the chimney
before hand and purchase the
appropriate kit. Never attempt to
over-stretch a flexible liner to
accommodate the height of the
chimney.
Any flue damper must be removed
or blocked permanently in the open
position.
The chimney must be clean, in
good working order and constructed
of non-combustible materials.
Make sure that all chimney
cleanouts are tightly fitting and will
not permit air to leak into the
chimney
Initial Installation
QUALIFIED INSTALLERS ONLY
VENTING FIREPLACE INSERTS:
The ENVIRO FOCUS may be installed and vented into any solid fuel replace that has been installed
in accordance with the National, Provincial/State and local building codes and has been constructed of
non-combustible materials.
An approved chimney liner and rain cap must be used. A throat connector or ashing must be installed
to ensure a tight seal, top performance, safety and efciency. Carefully follow the manufacturer’s
instructions which accompany the chimney liner kit.
Remove the vent collar plate from the top of the insert and connect it securely with sheet metal screws
and/or hose clamps. Check for any tears in the liner at this point.
IMPORTANT: The screws that hold the vent collar plate in its approved position must be installed.
Figure 23: Installation of Focus DV and BV.
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